Opera role -- got it wrong! (9)
I believe the answer is:
rigoletto
'opera' is the definition.
(I know that Rigoletto is a opera)
'role got it wrong' is the wordplay.
'wrong' indicates anagramming the letters.
'role'+'got'+'it'='rolegotit'
'rolegotit' with letters rearranged gives 'RIGOLETTO'.
(Other definitions for rigoletto that I've seen before include "Opera by Verdi" , "titled man" , "noted work" , "Verdi's hunchback jester" , "court favourite" .)